The AIRBAND series of PVC Coarse Bubble Diffusers from EVOQUA is ideally used for applications that need the width of the air release of the Wideband model integrated with PVC's corrosion resistance. It may be mounted on a 0.75" NPT Stainless steel nipple or on a 1.25" male NPT, ideal for a straight connection with a stainless or PVC pipe.